4th Grade Science, Unit 1, Energy Conversions, Summative Assessment

1. Liam and his friend Mark are going sledding at a local park. There are two hills to choose from, "The Bunny Slopes," which are small hills and lots of flat surfaces, and "The Dragon," which is a steep hill and not for beginners. Which hill would make Liam and his friend Mark go faster?

• A. The Bunny Slope because it is shorter.
• B. The Dragon because it is steeper.
• C. The Dragon because it is longer.
• D. The Bunny Slope because it is shallower.

2. Peter sets up his toy train on the railroad tracks in a straight line. He then places a box in the way on the train tracks. He tries running the train at different speeds to see how far the box will move. What would happen to the distance the box moves if the train increases in speed?

• A. The box would move a shorter distance.
• B. The box would move the same distance as a train moving at 70 cm/s.
• C. The box would move a longer distance.
• D. the box would move the same distance as a train moving at 30 cm/s

3. Which object is an example of a device that converts electrical currents into heat energy?

• A. A freezer
• B. A toaster
• C. The Sun
• D. A candle

4. Which answer choice is an example of how electrical currents in nature transfer energy?

• A. Television Sets
• B. Power plants
• C. Lightbulbs
• D. Lightning

5. Which household item is an example of energy being transferred as sound?

• A. A hairbrush
• B. An alarm clock
• C. A candle
• D. A lamp

6. Alexis has to identify an invention in her home that converts one energy form into another. She has selected the lightbulb. The energy input into a light bulb is electrical. What type of energy is output from a lightbulb?

• A. Sound and Light
• B. Heat and Motion
• C. Light and Motion
• D. Heat and Light

7. Allison has to design a device that converts energy between two different forms. She decides she wants to convert electrical energy into motion and sound. Which invention should she model her design after?

• A. A radio
• B. A pencil sharpener
• C. A dog
• D. A lightbulb

8. Rena designed a new device that can convert energy forms. Her design can take electrical energy and turn it into thermal or heat energy. Which answer choice(s) are an example of this conversion?

• A. A phone recording a voicemail message.
• B. A water source in the park "runs" water.
• C. The switch turns on the led lights in the classroom.
• D. An oven bakes a pizza.

9. Two bowling balls are rolling down two bowling lanes. The white ball is traveling at a speed of 14 miles per hour. The black ball is traveling at 12 miles per hour. Which statement explains the energy demonstrated in this example?

• A. The black ball has more energy.
• B. The white ball has more enrergy.
• C. They both have the same amount of energy.

10. Katelyn's town relies on energy from wind to power lights in her school. Her friend Jose lives in another town that does not have a lot of wind. He doesn't understand how wind can make the lights stay on in her school. Which of the following is the best explanation Katelyn can provide to Jose about how this works?

• A. Motion energy is converted to thermal energy.
• B. Motion energy is transferred to solar energy and then to electrical energy.
• C. Motion energy is created by solar energy.
• D. Motion energy is converted into electrical energy.